Cannot See Library, Develop, etc.

Let us back up further-

Which App are you using?  Lightroom v8, or Lightroom-Classic v14 ?

Lightroom (Cloud based v8) does not have a Module Menu for library, develop etc.

If the answers so far aren’t helping, we might have to back up a bit. What you should do depends on what you see, as in the picture below.

If you see A (the module picker is collapsed), then expand it by clicking the little gray triangle, or choose the command Window > Show > Module Picker, or press that command’s keyboard shortcut (F5).

If you see B (the module picker is visible, but no panels are visible), then choose the command Window > Panels > Toggle All Panels, or press its keyboard shortcut Shift-Tab. That should un-hide the panels on all sides.

If you see C (the header says Grid | Loupe | Compare | Survey), then the Secondary Window has appeared on top of the main application window and is blocking the normal modules. If this is happening, choose the command Window > Secondary Display > Show and make sure it’s deselected (toggle it off). If C happened to you, it’s because the Secondary Display setting sometimes gets messed up so that the Secondary Display window appears on the main display instead of another one, covering the application window so that even if you do all the right things to display the modules, the Secondary Display window is still in the way. This problem has been happening in Lightroom Classic for many years and has never been completely fixed.

If the cause was C, and you originally had the Secondary Display window set to be on another display, after this happens you’ll probably have to go into Preferences / Display and change that setting back to the other display.

Press F5. You can also click the little arrow at the top of the screen (or anywhere in the black area). Right click the arrow for options.

The panels in LrC have the following shortcuts (show/hide)

• Module picker: F5
• Filmstrip: F6
• Left hand panel: F7
• Right hand panel: F8

You can find a list of shortcuts in the Help menu in all modules.

I am an occasional user of LRC i cannot see the headers anymore like 'library, develop etc. why please and can i restore this facility?

By @i am getting mad now

Press F5

Hey, @i am getting mad now. Welcome to the Lightroom Community. I'll need more info to help you figure this out. 

What exact version of Lightroom Classic are you working on? 

If you're in Lightroom Classic, you can use the Window menu to switch between workspace modes:

Head here to learn more: https://adobe.ly/3VkBWdT